Disconnect/connect transmission oil line - AR27.10-P-0501-03CW

TRANSMISSION 722.9 in MODEL 172, 204, 207, 212, 218 

TRANSMISSION 724.2 in MODEL 212.095/098/195/298 

TRANSMISSION 722.6 in MODEL 204, 207, 212 

Fig 1: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Remove retaining clamp on connector 

Before opening the hydraulic system the area surrounding the separation point should be cleaned thoroughly. Even minute particles of dirt in the hydraulic components can result in malfunctions and total failure of the hydraulic system.

1. Detach dust cap (3) and push back along the transmission oil line (1) until the connector (2) is accessible.
2. Position a suitable tool (e.g. hook) at one end of the retaining clamp (2a) and pull the retaining clamp (2a) off the connector (2).
3. Pull transmission oil line (1) out of connector (2).

   Seal off line connections using plugs.

4. Pull dust cap (3) off transmission oil line (1).
   Fig 2: Identifying Transmission Oil Line, Connector, Retaining Clamp And Dust Cap

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

   Attach retaining clamp to connector 

   The safety clamp (2a) must be replaced after every disconnection of a transmission oil line.

5. Introduce one end of the safety clamp (2a) into a cutout (2b) on the connector (2).
6. Push retaining clamp (2a) in the direction of the arrow until the retaining clamp (2a) clicks into place in the connector (2).
   Fig 3: Identifying Safety Clamp And Connector

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
   Fig 4: Pushing Retaining Clamp Until The Retaining Clamp Clicks Into Place

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

   The retaining clamp (2a) must not be pushed straight over the connector (2) otherwise the retaining clamp (2a) will be stretched and proper sealing of the line connection is no longer guaranteed.

   Fig 5: View Of Improper Installation Of Clamp

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

   Attach transmission oil line to connector 

   The dust cap (3) must be replaced after every disconnection of a transmission oil line (1).

7. Push dust cap (3) onto the transmission oil line (1).
8. Introduce transmission oil line (1) straight into the connector (2) until it audibly and noticeable latches.
9. Push dust cap (3) onto the connector (2) until it latches and can turn freely.

   If the dust cap (3) cannot be pushed over the connecting point then the transmission oil line (1) is not fully latched in the connector (2) or the safety clamp (2a) is overstretched.

   Fig 6: Identifying Transmission Oil Line, Connector, Safety Clamp And Dust Clamp

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.